What if you or someone on a trek shows symptoms of high blood pressure, such as an aggrivating hypertensive headache. Look up! The Hawthorne tree is a spiny, somewhat thin and smallish tree, with finely lined greyish bark, which exhibits small, reddish, crabapple-like berries in the fall and winter. The berries can be chewed, eaten or made into a pleasant enough tea. It really works. Too much however will result in a next day "sleepy hangover" and you may end up sleeping the next morning away. Hawthorne berry has been used by Europeans (and Asians) for several hundred years at least for medicinal purposes.(Submitted for educational purposes.)

Dang! Where I was raised in Illinois, these were all over the place. My Grandpa called them red-haws. Been in Arkansas for nearly forty years, and have yet to find one here. May have to transplant one from up North. Thanks for the info.

You may also look down into grassy fields in Summertime, there you will see the common dandylion. If that high blood pressure continues to ruin your trip, pull up and eat a dandylion root. Though bitter, t is a mild diuretic which will cause you to pass urine and will help lower the salt content of your blood. Be sure to rehydrate with enough water. Between Dandylions and Hawthornes you should be very much restored (submitted for educational purposes only.)